The 2020-21 Eruption of La Soufrière Volcano, St Vincent

About this book

Volcanic eruptions are complex and inherently uncertain, making the management of a potentially explosive eruption on a small island with limited resources extremely difficult. This volume presents scientific findings from the 2020–21 eruption of La Soufrière Volcano, on the island of St Vincent in the Eastern Caribbean. This involved three months of effusive activity that escalated rapidly to 13 days of explosive activity, beginning with an intense two days of near-continuous ash venting and explosions. The book contains an introduction and 17 papers, split into two parts: the first presents geological and volcanological advances, whereas the second documents and analyses the impacts of the eruption and the challenges presented for the management of the volcanic crisis. This volume represents both significant contributions to the knowledge of the Soufrière eruptive system and important insights into the ways and means by which volcanic eruptions of this type impact on populations at risk. It also provides detailed insights into the most effective communication processes through this type of crisis.

Contents

Introduction
- An overview of the eruption of La Soufrière Volcano, St Vincent 2020–21 / Robertson, R. E. A., Barclay, J., Joseph, E. P. and Sparks, R. S. J.

Geological and volcanological advances
- Growth and evolution of the lava dome and coulée during the 2020–21 eruption of La Soufrière, St Vincent / Stinton, A. J.
- Monitoring volcano deformation at La Soufrière, St Vincent during the 2020–21 eruption with insights into its magma plumbing system architecture / Camejo-Harry, M., Pascal, K., Euillades, P., Grandin, R., Hamling, I., Euillades, L., Contreras-Arratia, R., Ryan, G. A., Latchman, J. L., Lynch, L. and Jo, M.
- Analysis of magma flux and eruption intensity during the 2021 explosive activity at La Soufrière, St Vincent, West Indies / Sparks, R. S. J., Aspinall, W. P., Barclay, J., Renfrew, I. A., Contreras-Arratia, R. and Stewart, R.
- Explosive sequence of La Soufrière, St Vincent, April 2021: insights into drivers and consequences via eruptive products / Cole, P. D., Barclay, J., Robertson, R. E. A., Mitchell, S., Davies, B. V., Constantinescu, R., Sparks, R. S. J., Aspinall, W. and Stinton, A.
- Estimation of eruption source parameters for the 2021 La Soufrière eruption (St. Vincent): implications for quantification of eruption magnitude on volcanic islands / Constantinescu, R., White, J. T., Connor, C., Cole, P., Fontijn, K., Barclay, J. and Robertson, R.
- Experimental insight into basaltic andesite lava dome oxidation textures at La Soufrière, St Vincent / Morrison-Evans, B., Melekhova, E. and Blundy, J.
- Analysis of magma rheology from lava spreading and explosive activity during the 2020–21 eruption of La Soufrière, St Vincent, with implications for eruption dynamics / Stinton, A., Sparks, R. S. J. and Huppert, H. E.
- Petrology of the 2020–21 effusive to explosive eruption of La Soufrière Volcano, St Vincent: insights into plumbing system architecture and magma assembly mechanism / Weber, G., Blundy, J., Barclay, J., Pyle, D. M., Cole, P., Frey, H., Manon, M., Davies, B. V. and Cashman, K.
- Petrology of the explosive deposits from the April 2021 eruption of La Soufrière volcano, St Vincent: a time-series analysis of microlites / Frey, H. M., Manon, M. R., Barclay, J., Davies, B. V., Walters, S. A., Cole, P. D., Christopher, T. E. and Joseph, E. P.
- SO₂ emissions during the 2021 eruption of La Soufrière, St Vincent, revealed with back-trajectory analysis of TROPOMI imagery / Esse, B., Burton, M., Hayer, C., Contreras-Arratia, R., Christopher, T., Joseph, E. P., Varnam, M. and Johnson, C.
- Impacts and prospective hazard analysis of rainfall-triggered lahars on St Vincent 2021–22 / Phillips, J., Barclay, J., Cole, P., Johnson, M., Miller, V. and Robertson, R.
- La Soufrière volcano, St Vincent, eruption 2020–21: assessing unrest and eruptive states from limited volcano-seismic data / Latchman, J. L. and Aspinall, W.
- Modelling pyroclastic density currents of the April 2021 La Soufrière, St Vincent eruption: from rapid invasion maps to field-constrained numerical simulations / Gueugneau, V., Charbonnier, S., Miller, V. L., Cole, P., Grandin, R. and Dualeh, E. W.

Impacts of the eruption and challenges for management of the volcanic crisis
- Physicochemical hazard assessment of ash and dome rock from the 2021 eruption of La Soufrière, St Vincent, for the assessment of respiratory health impacts and water contamination / Horwell, C. J., Damby, D. E., Stewart, C., Joseph, E. P., Barclay, J., Davies, B. V., Mangler, M. F., Marvin, L. G., Najorka, J., Peek, S. and Tunstall, N.
- Facts, faith and Facebook: science communication during the 2020–21 La Soufrière, St Vincent volcanic eruption / Graham, O., Thomas, T., Hicks, A., Edwards, S., Juman, A., Ramroop, A. and Robertson, R.
- Evaluating the crisis communications campaign during the 2020–21 eruption of La Soufrière, St Vincent / Mani, L., Edwards, S., Joseph, E., Juman, A. and Thomas, T.
- Emergency shelters fleeing La Soufrière: a case study from the April 2021 volcanic eruption in St Vincent and the Grenadines / Ferdinand, I. and Badenock, K.

Index

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